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All results from a given calculation for C(CN)4 (tetracyanomethane)

using model chemistry: B2PLYP=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-409.300086
Energy at 298.15K-409.298773
HF Energy-408.743251
Nuclear repulsion energy323.872608
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULL/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2304 2210 0.00      
2 A1 587 564 0.00      
3 E 565 542 0.00      
3 E 565 542 0.00      
4 E 112 107 0.00      
4 E 112 107 0.00      
5 T1 335 322 0.00      
5 T1 335 322 0.00      
5 T1 335 322 0.00      
6 T2 2299 2206 13.98      
6 T2 2299 2206 13.98      
6 T2 2299 2206 13.98      
7 T2 1073 1030 30.77      
7 T2 1073 1030 30.77      
7 T2 1073 1030 30.77      
8 T2 552 529 0.11      
8 T2 552 529 0.11      
8 T2 552 529 0.11      
9 T2 146 140 14.04      
9 T2 146 140 14.04      
9 T2 146 140 14.04      

Unscaled Zero Point Vibrational Energy (zpe) 8730.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 8376.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/aug-cc-pVTZ
ABC
0.05131 0.05131 0.05131

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.853 0.853 0.853
C3 -0.853 -0.853 0.853
C4 -0.853 0.853 -0.853
C5 0.853 -0.853 -0.853
N6 1.520 1.520 1.520
N7 -1.520 -1.520 1.520
N8 -1.520 1.520 -1.520
N9 1.520 -1.520 -1.520

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.47741.47741.47741.47742.63222.63222.63222.6322
C21.47742.41262.41262.41261.15473.42113.42113.4211
C31.47742.41262.41262.41263.42111.15473.42113.4211
C41.47742.41262.41262.41263.42113.42111.15473.4211
C51.47742.41262.41262.41263.42113.42113.42111.1547
N62.63221.15473.42113.42113.42114.29834.29834.2983
N72.63223.42111.15473.42113.42114.29834.29834.2983
N82.63223.42113.42111.15473.42114.29834.29834.2983
N92.63223.42113.42113.42111.15474.29834.29834.2983

picture of tetracyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 180.000 C1 C3 N7 180.000
C1 C4 N8 180.000 C1 C5 N9 180.000
C2 C1 C3 109.471 C2 C1 C4 109.471
C2 C1 C5 109.471 C3 C1 C4 109.471
C3 C1 C5 109.471 C4 C1 C5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability